生物技术进展 ›› 2023, Vol. 13 ›› Issue (3): 465-472.DOI: 10.19586/j.2095-2341.2023.0011

• 研究论文 • 上一篇    下一篇

急性感染条件下巨核细胞与血小板转录组变化的对比分析

刘勤勤1,2(), 黄柏铭1,2, 马叶子1,2, 刘翠翠1,2, 王洪涛1,2, 周家喜1,2()   

  1. 1.中国医学科学院血液病医院(中国医学科学院血液学研究所),北京协和医学院,实验血液学国家重点实验室,国家血液系统疾病临床医学研究中心,细胞生态海河实验室,天津 300020
    2.天津医学健康研究院,天津 301600
  • 收稿日期:2023-02-07 接受日期:2023-03-31 出版日期:2023-05-25 发布日期:2023-06-12
  • 通讯作者: 周家喜
  • 作者简介:刘勤勤 E-mail: liuqinqin@ihcams.ac.cn
  • 基金资助:
    中国医学科学院医学与健康科技创新工程项目(2021-I2M-1-073);天津市自然科学基金项目(20JCYBJC00240);天津市科技计划青年项目(22JCQNJC01270);细胞生态海河实验室“揭榜挂帅”项目(HH22KYZX0031)

Comparative Analysis of Megakaryocyte and Platelet Transcriptome Changes in Acute Infection

Qinqin LIU1,2(), Baiming HUANG1,2, Yezi MA1,2, Cuicui LIU1,2, Hongtao WANG1,2, Jiaxi ZHOU1,2()   

  1. 1.State Key Laboratory of Experimental Hematology,National Clinical Research Center for Blood Diseases,Haihe Laboratory of Cell Ecosystem,Institute of Hematology & Blood Diseases Hospital,Chinese Academy of Medical Sciences & Peking Union Medical College,Tianjin 300020,China
    2.Tianjin Institutes of Health Science,Tianjin 301600,China
  • Received:2023-02-07 Accepted:2023-03-31 Online:2023-05-25 Published:2023-06-12
  • Contact: Jiaxi ZHOU

摘要:

巨核细胞与血小板是造血系统中一组独特的亲子细胞。经典模式下,数量少且体积大的巨核细胞借助血流剪切力释放大量体积小且无核的血小板进入外周血,参与机体止凝血等过程。近年来,随着细胞分离与组学技术的发展,领域内对于巨核细胞和血小板分子特征的探索不断深入,但目前对于两者在分子水平关系上的研究相对有限。利用近期报道的大肠杆菌急性感染条件下小鼠骨髓巨核细胞和血小板的转录组数据,对感染后巨核细胞和血小板转录组的变化进行了对比分析。结果发现,感染后巨核细胞转录组的变化程度弱于血小板,且二者变化的基因存在差异。感染后巨核细胞和血小板共同上调的基因主要富集了抗原呈递的功能。血小板特异性上调基因的数量远高于巨核细胞特异性上调的基因及二者共同上调的基因,主要富集了细胞定植、转运、炎症反应及血小板活化等生物学过程。研究结果为探究巨核细胞和血小板的RNA继承关系及血小板的功能多样性提供了重要的数据支撑。

关键词: 巨核细胞, 血小板, 急性感染, 转录组

Abstract:

Megakaryocytes and platelets are a group of parent-offspring cells in hematopoietic system. In the classical mode, rare large megakaryocytes release abundant anuclear small platelets into the peripheral blood through the shear force of blood flow, participating in hemostasis and coagulation. In recent years, with the development of separation and sequencing technology, the exploration of the function and molecular characteristics of megakaryocyte and platelet has been deepening, but the relationship between the two on molecular level has not been analyzed in detail. Based on the transcriptome data of bone marrow megakaryocytes and platelets of mice infected by Escherichia coli reported by our group, this study compared the transcriptomic changes of megakaryocytes and platelets after acute infection. The results found that the change of megakaryocyte transcriptome after acute infection was weaker than that of platelets, and the involved genes were different. The genes up-regulated by both megakaryocytes and platelets after infection were mainly enriched by the function of antigen presentation. Besides,the number of genes up-regulated in platelet specifically was much higher than that in megakaryocyte, which mainly enrich the biology process of cell localization, transport, inflammatory reaction and platelet activation. This study provided data support for exploring the RNA inheritance relationship between megakaryocyte and platelet and the functional diversity of platelets.

Key words: megakaryocyte, platelet, acute infection, transcriptome

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